"Stormwatch marked the end of an era in Jethro Tull's history, as the last album on which longtime members Barriemore Barlow, John Evan, and David Palmer participated, and the final appearance of bassist John Glascock, who played on three of the cuts (Anderson supplied the bass elsewhere) and died following open-heart surgery a few weeks after its release. Anderson's inspiration seemed to be running out here ... most of the songs generally lack the craftsmanship and inspiration of such albums as Minstrel in the Gallery or Heavy Horses, much less Aqualung"